Home / 30,251.40-45,366.30-10,530.60

Finding the Fourth Proportional to 30,251.40, 45,366.30 and 10,530.60

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Solution

The fourth proportional to 30,251.40, 45,366.30 and 10,530.60 is: 15,792.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,251.40 : 45,366.30 = 10,530.60 : x
  2. Step 2: Convert to fraction form
    30,251.40/45,366.30 = 10,530.60/x
  3. Step 3: Cross multiply
    30,251.40x = 45,366.30 × 10,530.60
  4. Step 4: Simplify right side
    30,251.40x = 477,734,358.78
  5. Step 5: Solve for x
    x = 477,734,358.78/30,251.40
  6. Step 6: Final answer
    x = 15,792.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.